<?php

class ConfiguracionController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column2';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
            $criterio=new CDbCriteria(array(
                'condition'=>'configuracion_id='.$id,
                'order'=>'nombre',
            ));
            $dataProvider=new CActiveDataProvider('Variables', array(
                'pagination'=>array(
                    'pageSize'=>10,
                ),
                'criteria'=>$criterio,
            ));
		$this->render('view',array(
			'model'=>$this->loadModel($id),
                        'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
            $model=new Configuracion;

            // Uncomment the following line if AJAX validation is needed
            // $this->performAjaxValidation($model);

            if(isset($_POST['Configuracion']))
            {
                $model->attributes=$_POST['Configuracion'];
                // validar
                if($model->validate())
                   $model->fecha_lectura=date('Y-m-d H:i:s');


                /* a) procesar fichero principal
                 *    esto carga las variables del objeto configuracion
                 *    en esas variables estan los ficheros/directorios de objetos
                 */
                procesaFichero($model);
                // ahora model tiene un array de Variables
                // aqui mensaje de carga del fichero general y sus variables

                /* b) salvar el modelo, con su array de variables
                 *
                 */
                if(!$model->save()) {
                    $model->addError('ficherocfg', 'Error al salvar esta configuracion');
                    $this->redirect('index');
                }
            }

            $this->render('create',array(
                    'model'=>$model,
            ));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Configuracion']))
		{
			$model->attributes=$_POST['Configuracion'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'index' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
            $criteria=new CDbCriteria(array(
                'order'=>'fecha_lectura DESC',
            ));

		$dataProvider=new CActiveDataProvider('Configuracion', array(
                    'criteria'=>$criteria,
                ));

		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Configuracion('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Configuracion']))
			$model->attributes=$_GET['Configuracion'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		$model=Configuracion::model()->findByPk((int)$id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='configuracion-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}



    /**
     * procesaFichero()
     * Abre el fichero que venga como propiedad del objeto Configuracion
     * en 'ficheroppal' y carga las variabes en objetos Variable que
     * añade al objeto Configuracion actual
     *
     *
     *
     * @return bool (true si lo consigue)
     */
    public function procesaFichero($model){
        try {
            $fi = fopen($model->ficheroppal, 'r');

            if ($fi) {
                while (($buffer = fgets($fi, 4096)) !== false) {
                    $buffer=trim($buffer);
                    if (strlen($buffer)==0){
                        continue;
                    }
                    if (substr($buffer,0,1)=="#") {
                        continue;
                    }
                    if (strpos($buffer,"=")) {
                        $arr=explode('=',$buffer);
                        if (sizeof($arr)==2) {
                        // crear variable
                            $var = new Variables();
                            $var->nombre=$arr[0];
                            $var->valor=$arr[1];

                            // añadirla al modelo
                            if (!$model->addVariable($var)){
                                throw new Exception('No se puede añadir variable: '.$var->toString());
                                continue;
                            }
                        }
                    } //strpos($buffer,"=")
                }
                if (!feof($fi)) {
                    echo "Error: fallo inesperado de fgets()\n";
                }
                fclose($fi);
            }

        return true;
        }
        catch (Exception $e)
        {
            Yii::log($e->getTraceAsString(),'error');
            $this->addError('ficheroppal','Error de lectura');
            return false;
        }

    }


}
